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Tests of benzaldehyde - aldehydes and ketones
(a) It forms a white precipitate with solution.
(b) It creates a yellow precipitate with 2: 4 dinitrophenyl hydrazines.
(c) It provides pink colour with Schiff's reagent.
(d) It creates black precipitate or silver mirror with Tollen's reagent.
(e) It on reaction with alkaline KMnO4 and subsequent acidification gives a white precipitate of benzoic acid on cooling.
How many grams of NaCl will be produced when 2235 g of HCl are neutralized by an excess of NaOH according to the equation below? HCl + NaOH ---> H2O + NaCl
4Be9+2He4-6C12+0n1
zinc+copper(ll) chloride
Q. Show the chemical properties of Uranium? Uranium is mainly extracted from pitchblende. The concentrated ore (pitchblende, U 3 O 8 ) is washed and then fused with sodium nitr
Effect of impurities on resistivity: A small percentage of impurities can result in substantial increase in resistivity i.e. decrease in the conductivity. Mathem
Distilled water A kettle can be used to give boiling water, which is then condensed in a jam jar fitted with a big cork and immersed in a pan of cold water. Rubber tubing, adhe
Which of the following sets of quantum numbers is correct for an electron in 4f orbital: (1) n-=4, l=3. m+1, s= +1/2 (2) n-=4, l=4. m-4, s= -1/2
Q. Structure of Covalent Bonds? Ans. A covalent bond forms between elements that are near each other in the periodic table While an ionic bond involves an exchange of e
properties and uses of glycol?
A solvated electron is a free electron in (solvated in) a solution, and is the least possible anion. Solvated electrons happen widely although they are often not practical directly
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